Clinoptilolite-Ca
A valid IMA mineral species
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About Clinoptilolite-Ca
Formula:
Ca3(Si30Al6)O72 · 20H2O
Generally not pure but containing additional Na and/or K. Formula previously given as (Ca,Na,K)2-3Al3(Al,Si)2Si13O36.12H2O.
Lustre:
Vitreous
Hardness:
3½ - 4
Crystal System:
Monoclinic
Member of:
Name:
From the Greek klino - "oblique" ptylon - "feather" and lithos - "stone." The Ca-dominant member of the clinoptilolite series.
Type Locality:
The calcium analogue of Clinoptilolite-K and Clinoptilolite-Na. Clinoptilolite-Ca-Heulandite-Ca Series.
Unique Identifiers
Mindat ID:
6882
Long-form identifier:
mindat:1:1:6882:2
GUID
(UUID V4):
(UUID V4):
3a07a8b8-1139-4225-a11a-a045080eaff5
IMA Classification of Clinoptilolite-Ca
Approved
First published:
1977
Classification of Clinoptilolite-Ca
9.GE.05
9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
E : Chains of T10O20 Tetrahedra
9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
E : Chains of T10O20 Tetrahedra
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Symbol | Source | Reference |
---|---|---|
Cpt-Ca | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Cpt | Whitney & Evans (2010) | Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371 |
Cpt | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Cpt | Warr (2020) | Warr, L.N. (2020) Recommended abbreviations for the names of clay minerals and associated phases. Clay Minerals, 55, 261–264 doi:10.1180/clm.2020.30 |
Physical Properties of Clinoptilolite-Ca
Vitreous
Hardness:
3½ - 4 on Mohs scale
Optical Data of Clinoptilolite-Ca
Type:
Biaxial (+/-)
RI values:
nα = 1.476 - 1.491 nβ = 1.479 - 1.493 nγ = 1.479 - 1.497
2V:
Measured: 31° to 48°
Max Birefringence:
δ = 0.003 - 0.006
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v to r < v strong
Chemistry of Clinoptilolite-Ca
Mindat Formula:
Ca3(Si30Al6)O72 · 20H2O
Generally not pure but containing additional Na and/or K. Formula previously given as (Ca,Na,K)2-3Al3(Al,Si)2Si13O36.12H2O.
Generally not pure but containing additional Na and/or K. Formula previously given as (Ca,Na,K)2-3Al3(Al,Si)2Si13O36.12H2O.
Crystallography of Clinoptilolite-Ca
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 17.66 Å, b = 17.963 Å, c = 7.400 Å
β = 116.47°
β = 116.47°
Ratio:
a:b:c = 0.983 : 1 : 0.412
Unit Cell V:
2,101.39 ų (Calculated from Unit Cell)
Z:
2
Comment:
Space Group: C2/m, C2, or Cm
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0001304 | Clinoptilolite-Ca | Smyth J R, Spaid A T, Bish D L (1990) Crystal structures of a natural and a Cs-exchanged clinoptilolite natural sample American Mineralogist 75 522-528 | 1990 | 0 | 293 | ||
0001547 | Clinoptilolite-Ca | Armbruster T (1993) Dehydration mechanism of clinoptilolite and heulandite: Single-crystal X-ray study of Na-poor, Ca-, K-, Mg-rich clinoptilolite at 100 K Sample Natural Data obtained from the ICSD American Mineralogist 78 260-264 | 1993 | 0 | 293 | ||
0001548 | Clinoptilolite-Ca | Armbruster T (1993) Dehydration mechanism of clinoptilolite and heulandite: Single-crystal X-ray study of Na-poor, Ca-, K-, Mg-rich clinoptilolite at 100 K Sample Dehyd 1 Data obtained from the ICSD American Mineralogist 78 260-264 | 1993 | 0 | 293 | ||
0006812 | Clinoptilolite-Ca | Cappelletti P, Langella A, Cruciani G (1999) Crystal-chemistry and synchrotron Rietveld refinement of two different clinoptilolites from volcanoclastites of North-Western Sardinia European Journal of Mineralogy 11 1051-1060 | 1999 | volcanoclastites of North-Western Sardinia | 0 | 293 | |
0006813 | Clinoptilolite-Ca | Cappelletti P, Langella A, Cruciani G (1999) Crystal-chemistry and synchrotron Rietveld refinement of two different clinoptilolites from volcanoclastites of North-Western Sardinia European Journal of Mineralogy 11 1051-1060 | 1999 | volcanoclastites of North-Western Sardinia | 0 | 293 | |
0010792 | Clinoptilolite-Ca | Koyama K, Takeuchi Y (1977) Clinoptilolite: The distribution of potassium atoms and its role in thermal stability Zeitschrift fur Kristallographie 145 216-239 | 1977 | Kuruma Pass, Fukushima Prefecture, Japan | 0 | 293 | |
0010793 | Clinoptilolite-Ca | Koyama K, Takeuchi Y (1977) Clinoptilolite: The distribution of potassium atoms and its role in thermal stability Zeitschrift fur Kristallographie 145 216-239 | 1977 | Agoura, California, USA | 0 | 293 | |
0015651 | Clinoptilolite-Ca | Alberti A (1975) The crystal structure of two clinoptilolites Tschermaks Mineralogische und Petrographische Mitteilungen 22 25-37 | 1975 | Agoura, California, USA | 0 | 293 |
CIF Raw Data - click here to close
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 3a: Earth’s earliest Hadean crust | >4.50 |
9 : Lava/xenolith minerals (hornfels, sanidinite facies) | |
10 : Basalt-hosted zeolite minerals | |
Stage 3b: Earth’s earliest hydrosphere | >4.45 |
14 : Hot springs, geysers, and other subaerial geothermal minerals | |
16 : Low-𝑇 aqueous alteration of Hadean subaerial lithologies (see also #23) | |
Near-surface Processes | |
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47) | |
24 : Authigenic minerals in terrestrial sediments (see also #17) | |
25 : Evaporites (prebiotic) | |
Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere | <0.6 |
48 : Soil leaching zone minerals | <0.6 |
Type Occurrence of Clinoptilolite-Ca
Reference:
Koyama, K. and Y. Takeuchi (1977) Clinoptilolite: The distribution of potassium atoms and its role in thermal stability. Zeitschrift für Kristallographie: 145: 216-239.
Other Language Names for Clinoptilolite-Ca
German:Klinoptilolith-Ca
Russian:Клиноптилолит-Ca
Relationship of Clinoptilolite-Ca to other Species
Member of:
Other Members of this group:
Clinoptilolite-K | K6(Si30Al6)O72 · 20H2O | Mon. 2/m |
Clinoptilolite-Na | Na6(Si30Al6)O72 · 20H2O | Mon. 2/m : B2/m |
Forms a series with:
Common Associates
Associated Minerals Based on Photo Data:
35 photos of Clinoptilolite-Ca associated with Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
27 photos of Clinoptilolite-Ca associated with Eudialyte Group | [N(1)N(2)N(3)N(4)N(5)]3[M(1.1)M(1.2)]3[M(2.1)M(2.2)M(2.3)]3-6[M(3)M(4)]Z3[Si24O72]Θ4X(1)X(2) |
23 photos of Clinoptilolite-Ca associated with Chabazite-Ca | (Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O |
20 photos of Clinoptilolite-Ca associated with Sodalite | Na4(Si3Al3)O12Cl |
20 photos of Clinoptilolite-Ca associated with Erionite-Ca | (Ca,K2,Na2)2[Al4Si14O36] · 15H2O |
20 photos of Clinoptilolite-Ca associated with Pyrite | FeS2 |
16 photos of Clinoptilolite-Ca associated with Erionite-K | (K2,Ca,Na2)2[Al4Si14O36] · 15H2O |
14 photos of Clinoptilolite-Ca associated with Calcite | CaCO3 |
13 photos of Clinoptilolite-Ca associated with Analcime | Na(AlSi2O6) · H2O |
11 photos of Clinoptilolite-Ca associated with Dachiardite-Ca | (Ca,Na2,K2)5Al10Si38O96 · 25H2O |
Related Minerals - Strunz-mindat Grouping
9.GE.05 | Clinoptilolite-K | K6(Si30Al6)O72 · 20H2O |
9.GE.05 | Clinoptilolite-Na | Na6(Si30Al6)O72 · 20H2O |
9.GE.05 | Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
9.GE.05 | Heulandite-K | (K,Ca,Na)5(Si27Al9)O72 · 26H2O |
9.GE.05 | Heulandite-Na | (Na,Ca,K)6(Si,Al)36O72 · 22H2O |
9.GE.05 | Heulandite-Sr | (Sr,Na,Ca)5(Si27Al9)O72 · 24H2O |
9.GE.05 | Heulandite-Ba | (Ba,Ca,K)5(Si27Al9)O72 · 22H2O |
9.GE.10 | Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
9.GE.10 | Stilbite-Na | Na9(Si27Al9)O72 · 28H2O |
9.GE.15 | Barrerite | Na2(Si7Al2)O18 · 6H2O |
9.GE.15 | Stellerite | Ca4(Si28Al8)O72 · 28H2O |
9.GE.20 | Brewsterite-Ba | (Ba,Sr)[Al2Si6O16] · 5H2O |
9.GE.20 | Brewsterite-Sr | (Sr,Ba,Ca)[Al2Si6O16] · 5H2O |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Clinoptilolite-Ca
mindat.org URL:
https://www.mindat.org/min-6882.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
References for Clinoptilolite-Ca
Reference List:
Alberti, A. (1972) On the crystal structure of the zeolite heulandite. TMPM Tschermaks Mineralogische und Petrographische Mitteilungen, 18 (2). 129-146 doi:10.1007/bf01081798
Armbruster, Thomas (1993) Dehydration mechanism of clinoptilolite and heulandite: Single-crystal X-ray study of Na-poor, Ca-, K-, Mg-rich clinoptilolite at 100 K. American Mineralogist, 78 (3-4) 260-264
Coombs, Douglas S., Alberti, Alberto, Armbruster, Thomas, Artioli, Gilberto, Colella, Carmine, Galli, Ermanno, Grice, Joel D., Liebau, Friedrich, Mandarino, Joseph A., Minato, Hideo, Nickel, Ernest H., Passaglia, Elio, Peacor, Donald R., Quartieri, Simona, Rinaldi, Romano, Ross, Malcolm I., Sheppard, Richard A., Tillmanns, Ekkehart, Vezzalini, Giovanna (1997) Recommended nomenclature for zeolite minerals; report of the Subcommittee on Zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names. The Canadian Mineralogist, 35 (6) 1571-1606
Localities for Clinoptilolite-Ca
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Argentina | |
| Pablo Rodrigo Leal et al. (2011) |
Armenia | |
| Pavel.M. Kartashov (n.d.) |
Austria | |
| Kolitsch et al. (2012) |
| Kolitsch et al. (2015) |
Bulgaria | |
| Encheva |
Canada | |
| Pe-Piper et al. (2002) |
| Pe-Piper et al. (2002) |
Pe-Piper (2000) | |
Pe-Piper (2000) | |
| Reiner Mielke 2016 |
| Van Velthuizen et al. (2006) |
| Horváth collection XRD & EMPA EDS |
Cyprus | |
| Prüfer (2010) |
Czech Republic | |
| P.Pauliš et al. (2014) |
France | |
| Renac et al. (2010) |
Germany | |
| Habel (2009) |
| Belendorff (2021) |
| Belendorff (2021) |
Greece | |
| Voudouris et al. (2018) |
Hungary | |
| WDS - Norbert Zajzon |
| GEODA |
| Szakáll-Gatter-Szendrei: Mineral ... |
Indian Ocean | |
| D. Besse et al. |
Israel | |
| Kruszewski et al. (2021) |
Italy | |
| Gramaccioli (1975) +2 other references |
Japan | |
| Nendo Kagaku v.30 (1990) |
| Z. Kristallogr. 145 +1 other reference |
| PXRD + XRF by Alfredo Petrov |
New Zealand | |
| S. J. Mills |
| T. Saunderson collection |
| S. J. Mills |
Slovakia | |
| Myšľan P et al. (2022) |
Myšľan P et al. (2022) | |
| Myšľan P et al. (2022) |
| Tschegg et al. (2019) |
Spain | |
| Calvo (2018) |
| various added photos |
| various added photos |
UK | |
| Paul De Bondt collection |
| J.Russell Socierty 2006 |
USA | |
| Walstrom (n.d.) |
| Michael C. Michayluk collection |
| RRUFF database specimen no. RO61098 |
| Altaner et al. (1990) |
| Wise et al. (1978) |
| Kearns et al. (2016) |
| Tschernich et al. (1982) +1 other reference |
| Micro Probe Volume IX Number 3 Spring ... +1 other reference |
Rudy Tschernich Zeolite Collection |
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Cape Lookout Quarry, Tillamook County, Oregon, USA